US5213000A - Motor output shaft positioning device - Google Patents

Motor output shaft positioning device Download PDF

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Publication number
US5213000A
US5213000A US07/792,239 US79223991A US5213000A US 5213000 A US5213000 A US 5213000A US 79223991 A US79223991 A US 79223991A US 5213000 A US5213000 A US 5213000A
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US
United States
Prior art keywords
output shaft
motor output
hollow part
projections
bearing holder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/792,239
Other languages
English (en)
Inventor
Tsutomu Saya
Hiroaki Nakahashi
Shinichi Taniguchi
Tsutomu Watanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mabuchi Motor Co Ltd
Original Assignee
Mabuchi Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mabuchi Motor Co Ltd filed Critical Mabuchi Motor Co Ltd
Assigned to MABUCHI MOTOR CO., LTD. reassignment MABUCHI MOTOR CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WATANABE, TSUTOMU
Assigned to MABUCHI MOTOR CO., LTD. reassignment MABUCHI MOTOR CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: NAKAHASHI, HIROAKI, SAYA, TSUTOMU, TANIGUCHI, SHINICHI
Application granted granted Critical
Publication of US5213000A publication Critical patent/US5213000A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/081—Structural association with bearings specially adapted for worm gear drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • F16C17/08—Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
    • F16C2380/27—Motor coupled with a gear, e.g. worm gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H2057/0213—Support of worm gear shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
    • H02K2205/03—Machines characterised by thrust bearings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/09—Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/49643—Rotary bearing
    • Y10T29/49647—Plain bearing
    • Y10T29/49648—Self-adjusting or self-aligning, including ball and socket type, bearing and component making
    • Y10T29/49657—Socket making
    • Y10T29/49659—Socket making by molding or casting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/49643—Rotary bearing
    • Y10T29/49647—Plain bearing
    • Y10T29/49648—Self-adjusting or self-aligning, including ball and socket type, bearing and component making
    • Y10T29/49657—Socket making
    • Y10T29/49661—Nonmetallic socket
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/4971—Nonmetallic bearing element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/19698—Spiral
    • Y10T74/19828—Worm
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2186—Gear casings

Definitions

  • This invention relates generally to a motor output shaft positioning device for accurately positioning the motor output shaft in the axial direction of the shaft, and more particularly to a motor output shaft positioning device for minimizing the axial movement of the rotor and preventing mechanical noise caused by the friction and play of the motor output shaft by accurately positioning the motor output shaft in the axial direction.
  • the axial movement of a motor output shaft is adjusted by using a nut, a screw having a tip which is machined into a special shape, and a steel ball, rotating the motor in a state where the screw comes in contact with an end of the output shaft of the rotor, fixing the screw by tightening the nut at a location where no-load current and the axial movement of the shaft are minimized.
  • Such an adjustment method of the axial movement of the motor output shaft not only involves a considerable degree of skill in fixing the screw and the nut, but also requires much time for the adjustment process.
  • FIG. 3 shows a cross-sectional view of the essential part of a bearing of assistance in explaining the conventional motor output shaft positioning method.
  • a worm wheel is housed in the lower part (not shown) of a gear case 31, and a motor output shaft 32 fitted to a worm meshing with the worm wheel is supported by a bearing projection 33 protruding radially inside the gear case 31.
  • a conical projection 34 protruding toward a hollow part 35 defined by the gear case 31 and the bearing projection 33.
  • an injection passage 36 connecting the inside and outside of the hollow part 35.
  • a nozzle 37 of an injection molder for injecting a synthetic resin 38 is connected to the injection passage 36 to inject the synthetic resin 38 into the hollow part 35.
  • the synthetic resin 38 which is polyacetal resin, for example, is injected at a lower rate than the normal injection rate. After the resin 38 is injected into the hollow part 35, the surface of the resin 38 is half solidified to form a skin layer 39. In this way, the synthetic resin 38 is prevented from leaking through a gap 40 formed between the motor output shaft 32 and the bearing projection 33.
  • the synthetic resin 38 is injected under increased injection pressure, allowed to cool and cure to form an appropriate gap between the conical projection 34 of the motor output shaft 32 and the synthetic resin 38.
  • injection pressure has to be increased only after the skin layer 39 has been formed as the synthetic resin 38 that was first injected was allowed to cool and cure, however, much time and labor are needed and injection pressure or injection temperature has to be precisely controlled.
  • the synthetic resin 38 may leak from the gap between the motor output shaft 32 and the bearing projection 33.
  • This invention is intended to solve these problems. It is an object of this invention to provide a motor output shaft positioning device that causes no axial play between the motor output shaft and the bearings.
  • this invention employs a motor output shaft positioning device for motors with worm reduction gears for outputting the output of a motor shaft via a worm reduction gear, comprising a gear case (17) having a hollow part (10) for housing a worm (6) fitted to a motor output shaft (4) and a worm wheel (7) meshing with the worm (6) and receiving an end of the motor output shaft (4); the hollow part (10) receiving a bearing (5) of the motor shaft (4) and a steel ball (9); a bearing holder having locking support legs (25) and/or axial-play adjusting projections (29), formed towards the bottom (26) of the hollow part (10), and a filler (23) that is injected into the hollow part (10) through a filling hole (28) formed on the hollow part (10).
  • a sealing projection (24) for the filler (23) is formed on the periphery of the bearing holder (22), and the filler (23) is composed of a synthetic resin that cures after filling.
  • a inspection hole (27) for adjusting the position of the bearing holder (22) and checking to see if the resin is charged to the full is provided on the bottom (26) of the hollow part (10).
  • the bearing holder houses the bearing and the steel ball, and the motor output shaft is inserted into the bearing.
  • the synthetic resin is charged through the filling hole, and the bearing holder is fixedly fitted at a proper position as the synthetic resin is cured.
  • the position of the bearing holder is adjusted by forcing the axial-play adjusting projections formed on the bottom of the bearing holder onto the bottom of the hollow part.
  • the synthetic resin is charged through the filling hole in a state where the axial-play adjusting projections, which are formed slightly longer, are buckled as they hit against the bottom of the hollow part.
  • the resin is then allowed to cure to secure the bearing holder in position.
  • the motor output shaft can be accurately adjusted in the axial direction, causing no play around this portion.
  • FIG. 1 is a schematic diagram illustrating a motor and reduction gears of assistance in explaining the motor output shaft positioning device of this invention.
  • FIGS. 2A, 2B, 2C and 2D are cross-sectional views of the bearing of the motor output shaft.
  • FIG. 3 is a cross-sectional view of the essential part of the bearing of assistance in explaining the conventional method of positioning the motor output shaft.
  • FIG. 1 is a schematic diagram illustrating a motor and reduction gears of assistance in explaining the motor output shaft positioning device of this invention.
  • FIGS. 2A through 2D are cross-sectional views of the bearing of the motor output shaft.
  • reference numeral 1 refers to a motor proper to which a reduction gear unit 2 is connected; 3 to a rotor to which a motor output shaft 4 is connected.
  • the motor output shaft 4 is supported by three bearings 5, 5' and 5" (radial bearings, for example).
  • On the motor output shaft 4 formed is a worm 6 with which a worm wheel 7 is meshed.
  • An output shaft 8 is extended from the center of the worm wheel 7 to be connected to an automobile windshield wiper, for example.
  • An end of the motor output shaft 4 is supported by a steel ball 9, and the steel ball 9 and the bearing 5 are housed and fixedly fitted to the bearing holder 22.
  • a hollow part 10 is formed between the bearing holder 22 and the gear case 17.
  • a magnet 11 Inside a motor case 16 of the motor proper 1 formed are a magnet 11, a commutator 12 and brushes 13, as shown in the figure, to operate as a standard d-c motor.
  • the bearing holder 22 has a sealing projection 24 formed on the periphery thereof to prevent the filler 23 from leaking from the gap between the periphery of the bearing holder 22 and the gear case 17.
  • the support legs 25 protrude from the bottom of the bearing holder 22.
  • Four support legs 25, for example, are provided to prevent the relative rotation of the bearing holder 22 and the filler 23 after the filler 23, which will be described later, is charged and solidified.
  • the inspection hole 27, on the other hand, is formed at the essentially middle part of the bottom 26 of the hollow part 10 into which the bearing holder 22 is inserted, while the filling hole 28 is formed on the upper part of the hollow part 10 shown in FIG. 2.
  • the axial force exerted on an end of the motor output shaft 4 is received by the steel ball 9'.
  • the axial force exerted on the other end of the motor output shaft 4 is received by the steel ball 9 placed in the bearing holder 22.
  • the radial force exerted on the motor output shaft 4 is received by three radial bearings 5, 5' and 5".
  • the bearing holder 22 is pushed by a pin, for example, to position the bearing holder 22 to a location where no axial play occurs, and then the filler 23 is injected through the filling hole 28.
  • the filler 23 is prevented from leaking by the sealing projection 24 of the bearing holder 22, and overflown from the inspection hole 27 after charged to the full.
  • the filler 23 is selected from among those resins which cure after filling, such as a two-component type epoxy resin, or a thermosetting resin. As the filler 23 cures, the support legs 25 protrude into the filler 23 to prevent the relative rotation of the bearing holder 22 and the filler 23. Furthermore, since the filler 23 is injected and cured in a state where adjustment is effected to eliminate axial play, the bearing holder 22 can be secured in position without axial play.
  • FIG. 2B shows another embodiment of the bearing holder 22.
  • the axial-play adjusting projection 29 is formed on the tip of the bearing holder 22.
  • the motor output shaft 4 is supported by the bearing 5, 5' and 5" and steel balls 9 and 9'.
  • the axial-play adjusting projections 29 hit against the bottom 26 of the hollow part 10 to buckle, eliminating the axial play of the motor output shaft 4.
  • the bearing holder 22 is secured in position without axial play by the filler 23 injected through the filling hole 28.
  • the inspection hole 27 is not provided.
  • the diameter of the axial-play adjusting projections 29 is set to such a value that the projections 29 can be buckled at a load lower than the axial load exerted in actual operation. Consequently, the diameter of the axial-play adjusting projections 29 varies depending on the material of the bearing holder 22.
  • FIG. 2C shows still another embodiment of the bearing holder 22.
  • the support legs 25 protrude from the bottom of the bearing holder 22, and the axial-play adjusting projections 29 are formed at the tips thereof.
  • Four support legs 25, for example, are provided to prevent the relative rotation of the bearing holder 22 and the filler 23 after the filler 23, which will be described later, is charged and cured.
  • the axial-play adjusting projections 29 are used to eliminate the axial play of the motor output shaft 4 as the projections 29 hit against the bottom 26 of the hollow part 10 and buckle.
  • the diameter of the axial-play adjusting projections 29 is set to such a value that the projections 29 can be buckled by a load lower than the axial load exerted in actual operation. Consequently, the diameter of the axial-play adjusting projections 29 varies depending on the material of the bearing holder 22.
  • the diameter of the support legs 25, on the other hand, is set to a value higher than that of the axial-play adjusting projections 29, that is, to such a value that the support legs 25 are hardly buckled by the axial load exerted in actual operation.
  • the part of the axial-play adjusting projection 29 consisting of one projection absorbs axial play as it buckles, while the part of the support leg 25 of the same projection prevents the rotation of the bearing holder 22 by the rigidity thereof.
  • the filler 23 is injected through the filling hole 28 in a state where the axial-play adjusting projections 29 hit against the bottom 26 of the bearing holder 22 and buckle.
  • the filler 23 is prevented from leaking by the sealing projection 24 of the bearing holder 22, and overflown from the inspection hole 27 after charged to the full.
  • the filler is selected from among those resins which are cured after filling. As the filler 23 is cured, the bearing holder 22 is held in position to prevent the axial play of the motor output shaft 4.
  • FIG. 2D shows still another embodiment of the bearing holder. Shown in FIG. 2D is an embodiment where the locking support legs 25 and the axial-play adjusting projections 29 are provided independently as separate projections.
  • the inspection hole 27 is provided, not at the center of the bottom 26 of the hollow part 10, but on the opposite side of the filling hole 28 of the bottom 26 so as to prevent the axial-play adjusting projections 28 from interfering with the inspection hole 27.
  • this invention makes it possible to precisely position the motor output shaft in the axial direction without troublesome work, thus eliminating mechanical noise produced by the motor output shaft, the bearings, and so on.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Frames (AREA)
  • Rolling Contact Bearings (AREA)
  • Gear Transmission (AREA)
US07/792,239 1990-11-11 1991-11-14 Motor output shaft positioning device Expired - Lifetime US5213000A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP31028290 1990-11-16
JP2-310282 1990-11-16
JP3-217655 1991-08-29
JP3217655A JPH07106044B2 (ja) 1990-11-16 1991-08-29 モータ出力軸位置決め装置

Publications (1)

Publication Number Publication Date
US5213000A true US5213000A (en) 1993-05-25

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Application Number Title Priority Date Filing Date
US07/792,239 Expired - Lifetime US5213000A (en) 1990-11-11 1991-11-14 Motor output shaft positioning device

Country Status (4)

Country Link
US (1) US5213000A (ja)
JP (1) JPH07106044B2 (ja)
DE (1) DE4137607C2 (ja)
GB (1) GB2250797B (ja)

Cited By (32)

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US5399025A (en) * 1991-12-25 1995-03-21 Asmo Co., Ltd. Bearing structure for motor
US5517070A (en) * 1993-01-27 1996-05-14 Siemens Aktiengesellschaft Drive unit, in particular an electromotive window - lift drive for a motor vehicle
US5755518A (en) * 1995-05-22 1998-05-26 International Business Machines Corporation Pivot bearing
US5788903A (en) * 1996-12-09 1998-08-04 General Motors Corporation Method for providing a self aligning die guide pin and bushing
US5795596A (en) * 1996-02-07 1998-08-18 Acushnet Company Compression mold with rubber shims
EP0998013A1 (en) * 1998-05-14 2000-05-03 Mabuchi Motor Co., Ltd Small-sized motor with worm speed reducer and method of manufacturing the motor
US6272942B1 (en) * 1998-05-30 2001-08-14 Mannesmann Vdo Ag Worm gear unit
US6309576B1 (en) * 1998-02-12 2001-10-30 Diacom Corporation Method for setup and molding of formed articles from thin coated fabrics
WO2002019501A1 (de) * 2000-08-30 2002-03-07 Robert Bosch Gmbh Aufnahme für axiale und radiale lagerung
US6386056B1 (en) * 1998-07-15 2002-05-14 Mannesmann Vdo Ag Worm-gear with electric motor
WO2002077492A1 (de) * 2001-03-24 2002-10-03 Robert Bosch Gmbh Getriebe-antriebseinheit
US20030048969A1 (en) * 2000-08-05 2003-03-13 Hunter Stephen Paul Bearing arrangement
US6564666B1 (en) * 1997-11-27 2003-05-20 Meritor Light Vehicle Systems-France Gear motor for driving vehicle equipment with elimination of transmission line axial play
US6604860B2 (en) * 2000-08-03 2003-08-12 Asmo Co., Ltd. Thrust bearing device and motor
US20030228079A1 (en) * 2002-04-30 2003-12-11 Sankyo Seiki Mfg. Co., Ltd. Motor with axially moveable bearing member
US20040035236A1 (en) * 2002-08-21 2004-02-26 Armin Stubner Windshield wiper device and method for making a worm gear, in particular, for a windshield wiper device for a motor vehicle
DE10310186A1 (de) * 2003-03-08 2004-09-16 Valeo Wischersysteme Gmbh Lager mit Axialabstützung für eine Welle eines elektromotorischen Hilfsantriebs zur Verwendung bei Fahrzeugen sowie elektromotorischer Hilfsantrieb mit einem solchen Lager
US20050104463A1 (en) * 2003-11-14 2005-05-19 Siemens Vdo Automotive Corporation Electric motor with self-adjusting bushing structure
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EP1928074A1 (fr) * 2006-11-30 2008-06-04 Société industrielle de Sonceboz S.A. Actionneur linéaire de type vis-écrou
US20080131043A1 (en) * 2006-12-01 2008-06-05 Witucki David E Axial delash mechanism
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DE102007003054A1 (de) 2007-01-20 2008-07-24 Valeo Systèmes d'Essuyage Lageranordnung
CN101963178A (zh) * 2009-07-21 2011-02-02 Skf公司 用于轴向锁定机械零件的方法和装置
CN102832741A (zh) * 2012-09-12 2012-12-19 宁波世通汽车零部件有限公司 一种电机及其输出轴窜动检测装置
CN104384011A (zh) * 2014-11-05 2015-03-04 江西稀有金属钨业控股集团有限公司 一种螺旋分级机及其提升螺杆的方法
CN105634202A (zh) * 2016-03-17 2016-06-01 成都华川电装有限责任公司 雨刮电机
US9435400B2 (en) * 2012-02-17 2016-09-06 Johnson Electric S.A. Drive unit
CN106357039A (zh) * 2016-10-26 2017-01-25 珠海格力节能环保制冷技术研究中心有限公司 外伸轴定位结构及电机传动结构
US10134554B2 (en) 2016-12-05 2018-11-20 Lsis Co., Ltd. Charging device of air circuit breaker
US10724433B2 (en) * 2016-12-22 2020-07-28 BMTS Technology GmbH & Co. KG Supercharger with axially adjustable clearance

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DE19727120A1 (de) * 1997-06-26 1999-02-04 Bosch Gmbh Robert Elektrische Antriebseinheit
FR2787944B1 (fr) * 1998-12-28 2001-03-23 Valeo Systemes Dessuyage Motoreducteur d'essuyage pour vehicule,a bruit reduit
US6809447B1 (en) * 1999-12-20 2004-10-26 Valeo Electrical Systems, Inc. Windshield wiper motor with molded sleeve and thrust elements
KR100392684B1 (ko) * 2001-03-16 2003-07-28 주식회사 캄코 윈도우 리프트 모터의 소음방지장치
DE10117573A1 (de) * 2001-04-07 2002-10-10 Valeo Auto Electric Gmbh Lageranordnung sowie Elektroantrieb mit einer solchen Lageranordnung
JP2003106330A (ja) * 2001-09-27 2003-04-09 Asmo Co Ltd 軸受装置およびギヤードモータ
DE102004012076A1 (de) * 2004-03-12 2005-09-29 Robert Bosch Gmbh Rotationsantrieb
JPWO2007116788A1 (ja) * 2006-04-12 2009-08-20 株式会社ミクニ 電動アクチュエータ
JP5049940B2 (ja) * 2008-10-14 2012-10-17 株式会社ミツバ 減速機構付モータ
JP5414407B2 (ja) * 2009-07-24 2014-02-12 株式会社ミツバ 減速機構付モータ
DE102013200130A1 (de) * 2013-01-08 2014-07-10 Robert Bosch Gmbh Wellenanlaufanordnung sowie Stellantrieb
JP2015163012A (ja) * 2014-02-28 2015-09-07 日本電産サンキョー株式会社 モータユニット
KR102345916B1 (ko) * 2015-04-22 2022-01-03 엘지이노텍 주식회사 모터
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US5938348A (en) * 1995-05-22 1999-08-17 International Business Machines Corporation Pivot bearing
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EP0998013A4 (en) * 1998-05-14 2006-03-15 Mabuchi Motor Co SMALL ENGINE WITH SCREW DRIVES AND METHOD FOR THE PRODUCTION THEREOF
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WO2002019501A1 (de) * 2000-08-30 2002-03-07 Robert Bosch Gmbh Aufnahme für axiale und radiale lagerung
WO2002077492A1 (de) * 2001-03-24 2002-10-03 Robert Bosch Gmbh Getriebe-antriebseinheit
US6951424B2 (en) * 2002-04-30 2005-10-04 Sankyo Seiki Mfg. Co. Ltd. Motor with axially moveable bearing member
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DE10310186A1 (de) * 2003-03-08 2004-09-16 Valeo Wischersysteme Gmbh Lager mit Axialabstützung für eine Welle eines elektromotorischen Hilfsantriebs zur Verwendung bei Fahrzeugen sowie elektromotorischer Hilfsantrieb mit einem solchen Lager
US6965180B2 (en) 2003-11-14 2005-11-15 Siemens Vdo Automotive Corporation Electric motor with self-adjusting bushing structure
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US20080163712A1 (en) * 2005-09-28 2008-07-10 Hans-Juergen Oberle Transmission Drive Unit With a Zero Axial Backlash Bearing Fastening, In Particular For Adjusting a Movable Part in a Motor Vehicle
US8365630B2 (en) * 2005-09-28 2013-02-05 Robert Bosch Gmbh Transmission drive unit with a zero axial backlash bearing fastening, in particular for adjusting a movable part in a motor vehicle
US20070295524A1 (en) * 2006-05-30 2007-12-27 Juergen Zimmermann Adjusting device for positioning a load
US7739927B2 (en) * 2006-05-30 2010-06-22 Juergen Zimmermann Adjusting device for positioning a load
US7682045B2 (en) 2006-11-30 2010-03-23 Societe Industrielle De Sonceboz S.A. Linear actuator of the screw-nut type
EP1928074A1 (fr) * 2006-11-30 2008-06-04 Société industrielle de Sonceboz S.A. Actionneur linéaire de type vis-écrou
US20080130310A1 (en) * 2006-11-30 2008-06-05 Societe Industrielle De Sonceboz S.A. Linear actuator of the screw-nut type
US7832936B2 (en) * 2006-12-01 2010-11-16 Gm Global Technology Operations, Inc. Axial delash mechanism
US20080131043A1 (en) * 2006-12-01 2008-06-05 Witucki David E Axial delash mechanism
DE102007003054A1 (de) 2007-01-20 2008-07-24 Valeo Systèmes d'Essuyage Lageranordnung
CN101963178A (zh) * 2009-07-21 2011-02-02 Skf公司 用于轴向锁定机械零件的方法和装置
CN101963178B (zh) * 2009-07-21 2015-12-09 Skf公司 用于轴向锁定机械零件的方法和装置
US9435400B2 (en) * 2012-02-17 2016-09-06 Johnson Electric S.A. Drive unit
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CN102832741B (zh) * 2012-09-12 2015-01-21 宁波世通汽车零部件有限公司 一种电机及其输出轴窜动检测装置
CN104384011A (zh) * 2014-11-05 2015-03-04 江西稀有金属钨业控股集团有限公司 一种螺旋分级机及其提升螺杆的方法
CN105634202A (zh) * 2016-03-17 2016-06-01 成都华川电装有限责任公司 雨刮电机
CN106357039A (zh) * 2016-10-26 2017-01-25 珠海格力节能环保制冷技术研究中心有限公司 外伸轴定位结构及电机传动结构
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Also Published As

Publication number Publication date
GB2250797B (en) 1994-09-14
GB9123996D0 (en) 1992-01-02
GB2250797A (en) 1992-06-17
JPH07106044B2 (ja) 1995-11-13
DE4137607A1 (de) 1992-05-21
JPH0515103A (ja) 1993-01-22
DE4137607C2 (de) 1997-03-06

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